I've got a unified view model that I want to animate (orbital 360º rotation). I've done this lots of times successfully. Every once in a while the center point of the model is "off". The result being that the house (model) is sweeping toward you and then swinging out away from you...instead of (what I want) which would be more like if the house were sitting in the center of a turntable and you spun it around. How do I get my rotation center point back to where it needs to be?